package com.truntao.system.service.impl;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import javax.annotation.Resource;
import javax.validation.Validator;

import com.github.pagehelper.Page;
import com.truntao.common.core.domain.dto.SysUserDTO;
import com.truntao.system.domain.po.SysPost;
import com.truntao.system.domain.po.SysUserPost;
import com.truntao.system.domain.po.SysUserRole;
import com.truntao.system.domain.ro.SysUserParam;
import com.truntao.system.domain.ro.SysUserUpdateParam;
import com.truntao.system.service.ISysConfigService;
import com.truntao.system.service.ISysUserService;
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;
import com.truntao.common.annotation.DataScope;
import com.truntao.common.constant.UserConstants;
import com.truntao.common.core.domain.entity.SysRole;
import com.truntao.common.core.domain.entity.SysUser;
import com.truntao.common.exception.ServiceException;
import com.truntao.common.utils.SecurityUtils;
import com.truntao.common.utils.bean.BeanValidators;
import com.truntao.common.utils.spring.SpringUtils;
import com.truntao.system.mapper.SysPostMapper;
import com.truntao.system.mapper.SysRoleMapper;
import com.truntao.system.mapper.SysUserMapper;
import com.truntao.system.mapper.SysUserPostMapper;
import com.truntao.system.mapper.SysUserRoleMapper;

/**
 * 用户 业务层处理
 *
 * @author truntao
 */
@Service
public class SysUserServiceImpl implements ISysUserService {
    private static final Logger log = LoggerFactory.getLogger(SysUserServiceImpl.class);
    private static final String BR = "<br/>";
    @Resource
    private SysUserMapper userMapper;

    @Resource
    private SysRoleMapper roleMapper;

    @Resource
    private SysPostMapper postMapper;

    @Resource
    private SysUserRoleMapper userRoleMapper;

    @Resource
    private SysUserPostMapper userPostMapper;

    @Resource
    private ISysConfigService configService;

    @Resource
    protected Validator validator;

    /**
     * 根据条件分页查询用户列表
     *
     * @param user 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public Page<SysUserDTO> selectUserList(SysUser user) {
        Page<SysUserDTO> page = new Page<>();
        try (Page<SysUserDTO> list = userMapper.selectUserList(user)) {
            page.setTotal(list.getTotal());
            page.addAll(list);
        }
        return page;
    }

    /**
     * 根据条件分页查询已分配用户角色列表
     *
     * @param userParam 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUserDTO> selectAllocatedList(SysUserParam userParam) {
        return userMapper.selectAllocatedList(userParam.getSysUser(), userParam.getRoleId());
    }

    /**
     * 根据条件分页查询未分配用户角色列表
     *
     * @param userParam 用户信息
     * @return 用户信息集合信息
     */
    @Override
    @DataScope(deptAlias = "d", userAlias = "u")
    public List<SysUserDTO> selectUnallocatedList(SysUserParam userParam) {
        return userMapper.selectUnallocatedList(userParam.getSysUser());
    }

    /**
     * 通过用户名查询用户
     *
     * @param userName 用户名
     * @return 用户对象信息
     */
    @Override
    public SysUserDTO selectUserByUserName(String userName) {
        return userMapper.selectUserByUserName(userName);
    }

    /**
     * 通过用户ID查询用户
     *
     * @param userId 用户ID
     * @return 用户对象信息
     */
    @Override
    public SysUserDTO selectUserById(Long userId) {
        return userMapper.selectUserById(userId);
    }

    /**
     * 查询用户所属角色组
     *
     * @param userName 用户名
     * @return 结果
     */
    @Override
    public String selectUserRoleGroup(String userName) {
        List<SysRole> list = roleMapper.selectRolesByUserName(userName);
        if (CollectionUtils.isEmpty(list)) {
            return StringUtils.EMPTY;
        }
        return list.stream().map(SysRole::getRoleName).collect(Collectors.joining(","));
    }

    /**
     * 查询用户所属岗位组
     *
     * @param userName 用户名
     * @return 结果
     */
    @Override
    public String selectUserPostGroup(String userName) {
        List<SysPost> list = postMapper.selectPostsByUserName(userName);
        if (CollectionUtils.isEmpty(list)) {
            return StringUtils.EMPTY;
        }
        return list.stream().map(SysPost::getPostName).collect(Collectors.joining(","));
    }

    /**
     * 校验用户名称是否唯一
     *
     * @param userId   用户Id
     * @param userName 用户名称
     * @return 结果
     */
    @Override
    public boolean checkUserNameUnique(Long userId, String userName) {
        SysUser info = userMapper.checkUserNameUnique(userName);
        if (Objects.nonNull(info) && !Objects.equals(info.getUserId(), userId)) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验手机号码是否唯一
     *
     * @param userId 用户Id
     * @param phone  手机号
     * @return java.lang.Boolean
     */
    @Override
    public boolean checkPhoneUnique(Long userId, String phone) {
        SysUser info = userMapper.checkPhoneUnique(phone);
        if (Objects.nonNull(info) && !Objects.equals(info.getUserId(), userId)) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验email是否唯一
     *
     * @param userId 用户Id
     * @param email  email
     * @return java.lang.Boolean
     */
    @Override
    public boolean checkEmailUnique(Long userId, String email) {
        SysUser info = userMapper.checkEmailUnique(email);
        if (Objects.nonNull(info) && !Objects.equals(info.getUserId(), userId)) {
            return UserConstants.NOT_UNIQUE;
        }
        return UserConstants.UNIQUE;
    }

    /**
     * 校验用户是否允许操作
     *
     * @param userId 用户Id
     */
    @Override
    public void checkUserAllowed(Long userId) {
        if (Objects.nonNull(userId) && isAdmin(userId)) {
            throw new ServiceException("不允许操作超级管理员用户");
        }
    }

    /**
     * 校验用户是否有数据权限
     *
     * @param userId 用户id
     */
    @Override
    public void checkUserDataScope(Long userId) {
        if (!isAdmin(SecurityUtils.getUserId())) {
            SysUser user = new SysUser();
            user.setUserId(userId);
            List<SysUserDTO> users = SpringUtils.getAopProxy(this).selectUserList(user);
            if (CollectionUtils.isEmpty(users)) {
                throw new ServiceException("没有权限访问用户数据！");
            }
        }
    }

    /**
     * 新增保存用户信息
     *
     * @param userParam 用户信息
     * @return 结果
     */
    @Override
    @Transactional
    public int insertUser(SysUserParam userParam) {
        SysUser user = userParam.getSysUser();
        user.setCreateBy(SecurityUtils.getUsername());
        user.setCreateTime(new Date());
        user.setPassword(SecurityUtils.encryptPassword(user.getPassword()));
        // 新增用户信息
        int rows = userMapper.insert(user);
        // 新增用户岗位关联
        insertUserPost(user.getUserId(), userParam.getPostIds());
        // 新增用户与角色管理
        insertUserRole(user.getUserId(), userParam.getRoleIds());
        return rows;
    }

    /**
     * 注册用户信息
     *
     * @param userParam 用户信息
     * @return 结果
     */
    @Override
    public boolean registerUser(SysUserParam userParam) {
        SysUser user = userParam.getSysUser();
        return userMapper.insert(user) > 0;
    }

    /**
     * 修改保存用户信息
     *
     * @param userUpdateParam 用户信息
     * @return 结果
     */
    @Override
    @Transactional
    public int updateUser(SysUserUpdateParam userUpdateParam) {
        SysUser user = userUpdateParam.getSysUser();
        user.setUpdateBy(SecurityUtils.getUsername());
        user.setUpdateTime(new Date());
        Long userId = user.getUserId();
        // 删除用户与角色关联
        userRoleMapper.deleteUserRoleByUserId(userId);
        // 新增用户与角色管理
        insertUserRole(userId, userUpdateParam.getRoleIds());
        // 删除用户与岗位关联
        userPostMapper.deleteUserPostByUserId(userId);
        // 新增用户与岗位管理
        insertUserPost(userId, userUpdateParam.getPostIds());
        return userMapper.updateById(user);
    }

    /**
     * 用户授权角色
     *
     * @param userId  用户ID
     * @param roleIds 角色组
     */
    @Override
    @Transactional
    public void insertUserAuth(Long userId, Long[] roleIds) {
        userRoleMapper.deleteUserRoleByUserId(userId);
        insertUserRole(userId, roleIds);
    }

    /**
     * 修改用户基本信息
     *
     * @param userUpdateParam 用户信息
     * @return 结果
     */
    @Override
    public int updateUserProfile(SysUserUpdateParam userUpdateParam) {
        SysUser user = userUpdateParam.getSysUser();
        user.setUpdateBy(SecurityUtils.getUsername());
        user.setUpdateTime(new Date());
        return userMapper.updateById(user);
    }

    /**
     * 修改用户头像
     *
     * @param userName 用户名
     * @param avatar   头像地址
     * @return 结果
     */
    @Override
    public boolean updateUserAvatar(String userName, String avatar) {
        return userMapper.updateUserAvatar(userName, avatar) > 0;
    }

    /**
     * 重置用户密码
     *
     * @param userUpdateParam 用户信息
     * @return 结果
     */
    @Override
    public int resetPwd(SysUserUpdateParam userUpdateParam) {
        SysUser user = userUpdateParam.getSysUser();
        user.setUpdateBy(SecurityUtils.getUsername());
        user.setPassword(SecurityUtils.encryptPassword(user.getPassword()));
        user.setUpdateTime(new Date());
        return userMapper.updateById(user);
    }

    /**
     * 重置用户密码
     *
     * @param userName 用户名
     * @param password 密码
     * @return 结果
     */
    @Override
    public int resetUserPwd(String userName, String password) {
        return userMapper.resetUserPwd(userName, password);
    }

    /**
     * 新增用户岗位信息
     *
     * @param userId 用户对象
     * @param posts  岗位信息
     */
    public void insertUserPost(Long userId, Long[] posts) {
        if (ArrayUtils.isNotEmpty(posts)) {
            // 新增用户与岗位管理
            List<SysUserPost> list = new ArrayList<>(posts.length);
            for (Long postId : posts) {
                SysUserPost up = new SysUserPost();
                up.setUserId(userId);
                up.setPostId(postId);
                list.add(up);
            }
            userPostMapper.batchUserPost(list);
        }
    }

    /**
     * 新增用户角色信息
     *
     * @param userId  用户ID
     * @param roleIds 角色组
     */
    public void insertUserRole(Long userId, Long[] roleIds) {
        if (ArrayUtils.isNotEmpty(roleIds)) {
            // 新增用户与角色管理
            List<SysUserRole> list = new ArrayList<>(roleIds.length);
            for (Long roleId : roleIds) {
                SysUserRole ur = new SysUserRole();
                ur.setUserId(userId);
                ur.setRoleId(roleId);
                list.add(ur);
            }
            userRoleMapper.batchUserRole(list);
        }
    }

    /**
     * 通过用户ID删除用户
     *
     * @param userId 用户ID
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteUserById(Long userId) {
        // 删除用户与角色关联
        userRoleMapper.deleteUserRoleByUserId(userId);
        // 删除用户与岗位表
        userPostMapper.deleteUserPostByUserId(userId);
        return userMapper.deleteUserById(userId);
    }

    /**
     * 批量删除用户信息
     *
     * @param userIds 需要删除的用户ID
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteUserByIds(Long[] userIds) {
        for (Long userId : userIds) {
            checkUserAllowed(userId);
            checkUserDataScope(userId);
        }
        // 删除用户与角色关联
        userRoleMapper.deleteUserRole(userIds);
        // 删除用户与岗位关联
        userPostMapper.deleteUserPost(userIds);
        return userMapper.deleteUserByIds(userIds);
    }

    /**
     * 导入用户数据
     *
     * @param userList        用户数据列表
     * @param isUpdateSupport 是否更新支持，如果已存在，则进行更新数据
     * @param operName        操作用户
     * @return 结果
     */
    @Override
    public String importUser(List<SysUser> userList, Boolean isUpdateSupport, String operName) {
        if (Objects.isNull(userList) || userList.isEmpty()) {
            throw new ServiceException("导入用户数据不能为空！");
        }
        int successNum = 0;
        int failureNum = 0;
        StringBuilder successMsg = new StringBuilder();
        StringBuilder failureMsg = new StringBuilder();
        String password = configService.selectConfigByKey("sys.user.initPassword");
        for (SysUser user : userList) {
            try {
                // 验证是否存在这个用户
                SysUserDTO u = userMapper.selectUserByUserName(user.getUserName());
                if (Objects.isNull(u)) {
                    BeanValidators.validateWithException(validator, user);
                    user.setPassword(SecurityUtils.encryptPassword(password));
                    user.setCreateBy(operName);
                    userMapper.insert(user);
                    successNum++;
                    successMsg.append(BR).append(successNum).append("、账号 ").append(user.getUserName()).append(" 导入成功");
                } else if (Boolean.TRUE.equals(isUpdateSupport)) {
                    BeanValidators.validateWithException(validator, user);
                    checkUserAllowed(u.getUserId());
                    checkUserDataScope(u.getUserId());
                    user.setUserId(u.getUserId());
                    user.setUpdateBy(operName);
                    userMapper.updateById(user);
                    successNum++;
                    successMsg.append(BR).append(successNum).append("、账号 ").append(user.getUserName()).append(" 更新成功");
                } else {
                    failureNum++;
                    failureMsg.append(BR).append(failureNum).append("、账号 ").append(user.getUserName()).append(" 已存在");
                }
            } catch (Exception e) {
                failureNum++;
                String msg = "BR" + failureNum + "、账号 " + user.getUserName() + " 导入失败：";
                failureMsg.append(msg).append(e.getMessage());
                log.error(msg, e);
            }
        }
        if (failureNum > 0) {
            failureMsg.insert(0, "很抱歉，导入失败！共 " + failureNum + " 条数据格式不正确，错误如下：");
            throw new ServiceException(failureMsg.toString());
        } else {
            successMsg.insert(0, "恭喜您，数据已全部导入成功！共 " + successNum + " 条，数据如下：");
        }
        return successMsg.toString();
    }

    public boolean isAdmin(Long userId) {
        return userId != null && 1L == userId;
    }
}
